1 // Copyright 2016 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ 8 #define CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ 9 10 #include <memory> 11 12 #include "core/fxcrt/fx_memory.h" 13 #include "core/fxcrt/fx_stream.h" 14 15 class CPDF_Dictionary; 16 class CPDF_Object; 17 18 class CPDF_LinearizedHeader { 19 public: 20 ~CPDF_LinearizedHeader(); 21 static std::unique_ptr<CPDF_LinearizedHeader> CreateForObject( 22 std::unique_ptr<CPDF_Object> pObj); 23 24 // Will only return values > 0. 25 FX_FILESIZE GetFileSize() const { return m_szFileSize; } 26 uint32_t GetFirstPageNo() const { return m_dwFirstPageNo; } 27 // Will only return values > 0. 28 FX_FILESIZE GetLastXRefOffset() const { return m_szLastXRefOffset; } 29 uint32_t GetPageCount() const { return m_PageCount; } 30 // Will only return values > 0. 31 FX_FILESIZE GetFirstPageEndOffset() const { return m_szFirstPageEndOffset; } 32 // Will only return values > 0. 33 uint32_t GetFirstPageObjNum() const { return m_FirstPageObjNum; } 34 35 bool HasHintTable() const; 36 // Will only return values > 0. 37 FX_FILESIZE GetHintStart() const { return m_szHintStart; } 38 // Will only return values > 0. 39 FX_FILESIZE GetHintLength() const { return m_szHintLength; } 40 41 protected: 42 explicit CPDF_LinearizedHeader(const CPDF_Dictionary* pDict); 43 44 private: 45 FX_FILESIZE m_szFileSize = 0; 46 uint32_t m_dwFirstPageNo = 0; 47 FX_FILESIZE m_szLastXRefOffset = 0; 48 uint32_t m_PageCount = 0; 49 FX_FILESIZE m_szFirstPageEndOffset = 0; 50 uint32_t m_FirstPageObjNum = 0; 51 FX_FILESIZE m_szHintStart = 0; 52 FX_FILESIZE m_szHintLength = 0; 53 }; 54 55 #endif // CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ 56
